Bio Planet WoO (生物彗星WoO Seibutsu Suisei Ū?) is a "Kyodai Hero" themed tokusatsu that premiered April 9, 2006 and aired at 7:30pm on NHK and ran for 13 episodes. WoO was one of many unused ideas created by Eiji Tsuburaya as story connecting to the show Ultra Q. The story revolves around a living creature which came from a comet named WoO; in the series, WoO is befriended by a young girl named Ai; both are chased by a mysterious organization called SWORD who sees WoO as a threat to humanity. At the same time, giant monsters have invaded in search of WoO. The story itself follows the original script Tsuburaya intended for the show. In addition, a Manga series was published a year later which was loosely based on the series of the same name.
A year after the show ended its run a manga Shoujo series of the same name was published but compare to the TV show the manga features elements & traits that defers greatly from the show that the manga was loosely based on. Unlike the TV show the manga had a more lighthearted feel with a Slice of life style genre thus distant it from the more Kyodai Hero style series and because of this the manga solely focused on the main characters.